Long-lived Assets - Schedule of Property, Plant, and Equipment (Details) - USD ($) $ in Thousands	Jun. 25, 2016	Dec. 26, 2015
Property, Plant and Equipment [Line Items]
Long-lived assets, gross	$ 273,245	$ 251,435
Less: accumulated depreciation and amortization	(236,665)	(232,005)
Net long-lived assets	36,580	19,430
Construction-in-progress	7,211	4,423
Total property, plant, and equipment	43,791	23,853
Machinery and equipment
Property, Plant and Equipment [Line Items]
Long-lived assets, gross	164,310	150,983
Computer equipment and software
Property, Plant and Equipment [Line Items]
Long-lived assets, gross	29,923	27,951
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Long-lived assets, gross	5,980	5,380
Leasehold improvements
Property, Plant and Equipment [Line Items]
Long-lived assets, gross	$ 73,032	$ 67,121